Cube textures are now cached by texture cache

dist/preview release/babylon.max.js

@@ -7959,6 +7959,7 @@ var BABYLON;
                     texture.isReady = true;
                 }, files);
             }
+            this._loadedTexturesCache.push(texture);
             return texture;
         };
         Engine.prototype.updateTextureSize = function (texture, width, height) {

dist/preview release/what's new.md

@@ -3,6 +3,7 @@
 ### Major updates
     
 ### Updates
+- Cube textures are now cached by texture cache ([deltakosh](https://github.com/deltakosh)) 
 - Added onAnimationEnd callback for `sprite.playAnimation` ([deltakosh](https://github.com/deltakosh)) 
 - Added support for non square textures for sprites ([deltakosh](https://github.com/deltakosh)) 
 - Added support for texture arrays ([deltakosh](https://github.com/deltakosh)) 

src/babylon.engine.js

@@ -1903,6 +1903,7 @@ var BABYLON;
                     texture.isReady = true;
                 }, files);
             }
+            this._loadedTexturesCache.push(texture);
             return texture;
         };
         Engine.prototype.updateTextureSize = function (texture, width, height) {

src/babylon.engine.ts

@@ -2314,6 +2314,8 @@
                 }, files);
             }
 
+            this._loadedTexturesCache.push(texture);
+
             return texture;
         }